class Solution {
public:
    int findPoisonedDuration(vector<int>& timeSeries, int duration) {
        int ret=0;
        for(int i=1;i<timeSeries.size();i++)
        {
            int x=timeSeries[i]-timeSeries[i-1];
            if(x>=duration)ret+=duration;
            else ret+=x;
        }
        return ret+duration;
    }
};
